Why don't you test directly for where you know the difference is? You won't need is_deeply since you don't need to check all elements. You only need to check that there is at least one difference, and if you know your input data, you know where to find the difference.

In reply to Re: Inverting test conditions in Test::More ? by Corion
in thread Inverting test conditions in Test::More ? by LanX

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